Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200076D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2009 1
DATA SHEET
SMV1705 Series: Hyperabrupt Junction Tuning Varactors
Applications
xLow-noise and wideband UHF and VHF VCOs
xHigh volume, low-cost batteries
Features
xLow series resistance
xHigh capacitance ratio
xPackages rated MSL1, 260 °C per JEDEC J-STD-020
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances) compliant packaging.
Description
The SMV1705 group of silicon hyperabrupt junction varactor
diodes is specifically designed for battery operation. The specified
high capacitance ratio and low reverse voltage of these varactors
make them appropriate for low-noise Voltage Controlled
Oscillators (VCOs) used at frequencies in wireless systems up to
and above 2.5 GHz.
Table 1 describes the various packages and markings of the
SMV1705 group of varactors.
Table 1. Packaging and Marking
Common Cathode Common Cathode Single
SOT-23 SC-70 SC-79
SMV1705-004
Marking: CY3
SMV1705-074
Marking: CY3
SMV1705-004LF
Marking: HY3
SMV1705-074LF
Marking: HY3
SMV1705-079LF
Marking: Cathode
LS = 1.4 nH LS = 0.7 nH
LF denotes lead (Pb)-free, RoHS-compliant packaging option as an alternative to the standard Skyworks tin/lead (Sn/Pb) packaging.
DATA SHEET • SMV1705 SERIES VARACTORS
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Table 2. SMV1405-SMV1413 Series Absolute Maximum Ratings
Parameter Symbol Minimum Typical Maximum Units
Reverse voltage VR 15 V
Forward current IF 20 mA
Power dissipation PDIS 250 mW
Operating temperature TOP –55 +125 qC
Storage temperature TSTG –55 +150 qC
Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. The
SMV1705 group of varactors are Class 0 Human Body Model (HBM) ESD devices.
Table 3. SMV1405-SMV1413 Series Electrical Specifications (Note 1)
(TOP = 25
q
C, Unless Otherwise Noted)
Parameter Symbol Test Condition Min Typical Max Units
Reverse current IR VR = 8 V <0.01 20 nA
Capacitance CT F = 1 MHz
VR = 1 V
VR = 4 V
17.3
5.3
18.3
6.1
19.3
6.6
pF
pF
Capacitance ratio CTR CT @ 1 V/ CT @ 4 V 2.8 3.0 –
Series resistance RS F = 470 MHz, VR = 1 V 0.32 Ω
Breakdown voltage VBR IR = 10 μA 12 V
Note 1: Performance is guaranteed only under the conditions listed in this Table and is not guaranteed over the full operating or storage temperature ranges. Operation at elevated
temperatures may reduce reliability of the device.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SMV1705 group of
varactors are provided in Table 2. Electrical specifications are
provided in Table 3. Typical capacitance values are listed in
Table 4. Typical performance characteristics of the SMV1705
varactors are illustrated in Figures 1 and 2.
The SPICE model for the SMV1705 varactors is shown in Figure 3
and the associated model parameters are provided in Table 5.
Package dimensions are shown in Figures 4 to 8 (even numbers),
and tape and reel dimensions are provided in Figures 5 to 9 (odd
numbers).
Package and Handling Information
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The SMV1705 series of varactors are rated to Moisture Sensitivity
Level 1 (MSL1) at 260 qC. They can be used for lead or lead-free
soldering. For additional information, refer to the Skyworks
Application Note, Solder Reflow Information, document number
200164
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format. For packaging details, refer to the Skyworks
Application Note Discrete Devices and IC Switch/Attenuators Tape
and Reel Package Orientation, document number 200083.
DATA SHEET • SMV1705 SERIES VARACTORS
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200076D • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • September 25, 2009 3
Table 4. Capacitance vs Reverse Voltage
VR
(V)
CT (pF)
0 31.5
0.5 23.5
1.0 18.3
1.5 14.3
2.0 11.9
2.5 9.7
3.0 8.3
3.5 7.1
4.0 6.1
4.5 5.5
5.0 5.2
Typical Performance Characteristics
012345
0
10
15
5
20
25
30
35
Reverse Voltage (V)
Capacitance (pF)
Figure 1. Capacitance vs Reverse Voltage
–40 –20 0 +20 +40 +60 +80
Temperature (°C)
Percent of Variation (%)
–4
–3
–2
–1
0
+1
+2
+3
+4
+5
V
R
= 1 V
V
R
= 2.5 V
V
R
= 4 V
Figure 2. Relative Capacitance Change vs Temperature
DATA SHEET • SMV1705 SERIES VARACTORS
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DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
IND
L
S
L = L
S
RES
R
S
R = R
S
CAP
C
P
C = C
P
PORT
P_anode
port = 1
PORT
P_Cathode
port = 2
DIODEM
Diode_Model
I
S
= 1.00e-14
R
S
= 0
N = 1
T
T
= 0
C
JO
= C
JO
M = M
V
J
= V
J
E
G
= 1.11
X
TI
= 3
K
F
=0
A
F
=1
F
C
= 0.5
B
V
= 0
I
BV
= 1e-3
I
SR
= 0
N
R
= 2
I
KF
= 0
N
BV
= 1
I
BVL
= 0
N
BVL
= 1
T
BV1
= 0
T
NOM
= 27
F
FE
= 1
S1672
Figure 3. SPICE Model
Table 5. SPICE Model Parameters
Part Number CJO
(pF)
VJ
(V)
M CP
(pF)
RS
(
Ω)
LS
(nH)
SMV1705 31 3 2 0.5 0.32 0.8
DATA SHEET • SMV1705 SERIES VARACTORS
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200076D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2009 5
3
2
1
0.031 (0.80 mm) Min.
0.039 (1.00 mm) Max.
0.000 (0.00 mm) Min.
0.004 (0.10 mm) Max.
0.010 (0.25 mm) Min.
0.016 (0.40 mm) Max.
0.071 (1.80 mm) Min.
0.087 (2.20 mm) Max.
0.071 (1.80 mm) Min.
0.094 (2.40 mm) Max.
0.045 (1.15 mm) Min.
0.053 (1.35 mm) Max.
0.026 (0.65 mm) Ref.
0.051 (1.30 mm) Ref.
0.004 (0.10 mm) Min.
0.007 (0.18 mm) Max.
0.004 (0.10 mm) Min.
0.012 (0.30 mm) Max.
0.014 (0.35 mm) Ref.
S1653Dimensions are in inches (millimeters shown in parentheses)
Figure 4. SC-70 Package Dimensions
Notes:
1. Carrier tape: black conductive polycarbonate.
2. Cover tape material: transparent conductive PSA.
3. Cover tape size: 5.40 mm width.
4. All measurements are in millimeters.
2.40 ± 0.10 (Ao)
0.254 ± 0.02
2.40 ± 0.10 (Bo)
8.00 +0.30/–0.10
4.00 ± 0.10
Pin #1
3.50 ± 0.05
2.00 ± 0.05 1.75 ± 0.10
A
B
1.19 ± 0.10 (Ko)
∅1.50 ± 0.10
∅1.00 ± 0.25
S1685
4.00 ± 0.10
8o Max
1.00
1.90
0.59
A
B
B
A
8o Max
Figure 5. SC-70 Tape and Reel Dimensions
DATA SHEET • SMV1705 SERIES VARACTORS
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0.060 (1.50 mm) Min.
0.067 (1.70 mm) Max.
0.010
(0.25 mm) Min.
0.014
(0.35 mm) Max.
0.043 (1.10 mm) Min.
0.051 (1.30 mm) Max.
0.020
(0.50 mm) Min.
0.028
(0.70 mm) Max.
0.003
(0.07 mm) Min.
0.008
(0.20 mm) Max.
10° Max.
10° Max.
0.028
(0.70 mm) Min.
0.035
(0.90 mm) Max.
0.006 (0.15 mm) Min.
Cathode
Indicator
12
S1652Dimensions are in inches (millimeters shown in parentheses)
Figure 6. SC-79 Package Dimensions
S1673
Notes:
1. Carrier tape: black conductive polycarbonate or polystyrene.
2. Cover tape material: transparent conductive PSA.
3. Cover tape size: 5.4 mm width.
4. All measurements are in millimeters.
8.00 ± 0.20
0.229 ± 0.02 (T)
3.50 ± 0.05
A
B
ϕ1.50± 0.10
ϕ0.50± 0.05
4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05
0.80 ± 0.05 (Ko)
1.95 ± 0.05 (Bo)
1.40 ± 0.05
0.39 ± 0.05
0.90 ± 0.05 (Ao)
1.75 ± 0.10
2
o
Max
2
o
Max
A
B
B
A
Cathode Indicator
Figure 7. SC-79 Tape and Reel Dimensions
DATA SHEET • SMV1705 SERIES VARACTORS
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200076D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2009 7
3
2
1
0.035 (0.89 mm) Min.
0.044 (1.12 mm) Max.
0.0005 (0.01 mm) Min.
0.004 (0.10 mm) Max.
0.012 (0.30 mm) Min.
0.020 (0.50 mm) Max.
0.003 (0.080 mm) Min.
0.008 (0.20 mm) Max.
8° Max.
0.022 (0.55 mm) Ref.
0.110 (2.80 mm) Min.
0.120 (3.04 mm) Max.
0.083 (2.10 mm) Min.
0.104 (2.64 mm) Max.
0.037 (0.95 mm) Ref.
0.047 (1.20 mm) Min.
0.055 (1.40 mm) Max.
0.076 (1.92 mm) Ref.
0.020 (0.51 mm) Ref.
S1389
Dimensions are in inches (millimeters shown in parentheses)
Figure 8. SOT-23 Package Dimensions
Pin #1
Notes:
1. Carrier tape: black conductive polycarbonate.
2. Cover tape material: transparent conductive PSA.
3. Cover tape size: 5.40 mm width.
4. Tolerance ±0.10 mm.
5. All measurements are in millimeters.
3.02 ± 0.10 (Ao)
0.255 ± 0.013
2.18 ± 0.10 (Bo)
2.84
0.66
8.00 ± 0.30
4.00 ± 0.10 4.00 ± 0.10
3.50 ± 0.05
2.00 ± 0.05 1.75 ± 0.10
0.76
0.51
A
B
1.27 ± 0.10 (Ko)
∅1.55 ± 0.05
∅1.00 ± 0.25
S1684
A
B
B
A
8
o
Max
8
o
Max
Figure 9. SOT-23 Tape and Reel Dimensions
DATA SHEET • SMV1705 SERIES VARACTORS
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